Slat-adjusting device for louver-blinds.



C. H. SAPPER. sLAT ADJUSTING DEVICE FOR LouvER BLINDS.

APPLICATION FILED MAYI. 1918.

Patented July 9, 1918.

a at South Norfolk, county not be deranged or injured by the vertical tapes 14 and cross members CHARLES H. SAPPER, OF SOUTH NORFOLK, VIRGINIA.

SLAT-ADJ'USTING DEVICE FOR LOUVER-BLINDS.

To all whom it may lconcern l Be it known lthat I, CHARLES H. SAPPER, a citizen of theUnited States, and residing of Norfolk, State of Virginia, have invented certain new and useful Improvements in Slat-Adjusting Devices for Louver-Blinds, lowing is a specification.

The present invention relates to a device for tilting the slats of louver blinds. The objects of the invention are to provide a device which consists of few partsmay be manufactured at a low cost, will hold the slats in any desired position of adjustment without requiring any locking means, will the weather, and to provide a device that is adapted to be attached to the many different constructions of this ltype of blind. Other objects and features of novelty will be apparentfrom the description taken in connection'with the drawings in which Figure 1 ,is a sectional elevation through the top of a window Kframe and louver blind showing in elevation an adjustingf device constructed in accordance with the present invention applied thereto; and

Fig. 2 is a partial front elevation of the adjusting device and associated parts.

Referring to the drawings it will be seen that tl.e invention is illustrated in connection with a louver blind having a top slat 10 pivoted at its ends, as by means of the pins 11, to the frame 12 for tilting movement about an aXiseXtending longitudinally of the slat. The other slats, shown at 13, are supported from' the top slat 10 lin any suitable manner,- as by means of 15 the slats resting directly on the latter. It is to be understood however that the invention is not limited to any particular con struction o f louver blind, but is adapted for use with any form thereof.y

In the embodiment illustrated, the tilting device comprises a support 16i attached by.

any suitable means, as the screws 17 to the top of the frame 12. As shown, the support has the spaced depending arms 18 and 19 and the threaded rod 20 extends through the arm 18 being rotatably mounted .therein and is also rotatably supported in the arm 19 in any suitable manner, as bymeans of la screw 21. At the front end projecting from the arm 18, theA rod has secured thereto Specification of Letters Patent. Application filed May 1, 1918. Serial No. 231,980.

of which the fol' seen that movement of one of which is Patented July 9, 191,8.

a small sprocketl wheel 22 and a chain 23 passes over this wheel and. depends at the front of the blind. A housing 24 is arranged around the sprocket wheel so that the chain is prevented from jumping o the wheel, this housing being secured to the arm 18 by means of the ears 25 and screws 26. A nut 27 is fitted to the rod 20 and has an ear orlug 28 at the lower side thereof. A link 29 has one end pivotally connected to this lug and the other end `pivotally. secured to the' top .slat 10 at a point eccentric to the axisy about which it rocks. Any suitable means may be used for this purpose and as shown the end of the link is formed with an eye 30, which is connected .to the top slat by the staple 31.

. In the operation of the device it will be the chain 23cwill rotate the rod 20, thereby moving the 4n ut or *member 27 in a rectilinear path transversely4 slat of the blind. This moveof the top ment is transmitted to the top slat by means of the link 29 and tilts' the same so that all the slats of the blind may be adjusted to any desired position. As' shown inffull lines in Fig. 1, the parts are in the positions which they occupy when stantially horizontal. If, it is desired to rock or adjust the slats to the dotted line position, to move the nut or member 27 toward the line position, this 'movement being transmitted by means of the link 29 to the top slat whereby it is tilted.

`rom the foregoing description it will be seen thatlthe adjusting device is simple and rugged and therefore not easily deranged or injured. Furthermore the construction 1s the blind slats are sube j then the chain-22 is pulled so as Vleft as viewed in this figure -to the dotted l such that it may be manufactured at a low l that the slats will remain in any adjusted very easilv. Moreover it will be position as 'the nut 27 can be displaced only -by movement of the chain 23. Thus the adjusting device positively holds the slats at any angle without any additional locking means.

j Although the embodiment illustrated has been described in detail, it is to be understood that the invention 1s notlimitedl to the specific construction shown, but that changes may be made within the scope of the appended claims.

is claimed as `new and. desired to Having thus described my invention what be secured by LettersA Patent is: l 1. The combination with ay louver blind having a pivoted top slat, of means for tilt- -ing y,the slats thereof including a threadedv member rotatively mounted at the top of the blind, a nut on said member, and a link having one end ivoted to the nut and the other end pivotalrly connected to the said top i slat at a point eccentric to the axis thereof.-

The combination with a louver blindof meansifor tilting the slats thereof including a member movable in 4 a rectilinear path transversely of the-blind, means for actuating said member, and Aa link connecting said `member and one'iof the.k slats of the blind,

whereby said Slat.

4, The combination vwith a louver blind having a pivoted top slat, of means for tiltmovement of said member tilts the ing the slats thereof including, a threaded rod extending transversely of the blind at the top thereof, a Wheel secured to the end of said rod, a chain passing over said Wheel and depending in front of the blind, a nut fitted on said rod, and a link connecting saidl nut and/top slat.

5. The combination with a^louver blind having a pivoted top slat, of means for tilting the slats of the blind including a membei` movable transversely of the blind, rota-4 tive means operable from the front of the blind for moving said member, and a` link connecting themember and said top slat, l

whereby movement of said ymember tilts the slats. FA

In testimony whereof I affix my signature. CHARLES H. SVLAPPER. 

